fortress.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fortress.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 04:20:18 UTC · ↺ Refresh

MX Hostnames

  • mx0b-0027cc01.pphosted.com
  • mx0a-0027cc01.pphosted.com

MX Priorities

  • mx0b-0027cc01.pphosted.com: 5
  • mx0a-0027cc01.pphosted.com: 5

A / AAAA Records

  • 216.239.38.21 ↩ any-in-2615.1e100.net
  • 216.239.32.21 ↩ any-in-2015.1e100.net
  • 216.239.34.21 ↩ any-in-2215.1e100.net
  • 216.239.36.21 ↩ any-in-2415.1e100.net
  • 2001:4860:4802:36::15 ↩ any-in-2001-4860-4802-36--15.1e100.net
  • 2001:4860:4802:38::15 ↩ any-in-2001-4860-4802-38--15.1e100.net
  • 2001:4860:4802:32::15 ↩ any-in-2001-4860-4802-32--15.1e100.net
  • 2001:4860:4802:34::15 ↩ any-in-2001-4860-4802-34--15.1e100.net

Mail Server IPs

  • 148.163.152.64 ↩ mx0b-0027cc01.pphosted.com
  • 148.163.149.156 ↩ mx0a-0027cc01.pphosted.com

SOA Record

Raw SOA pdns83.ultradns.com dns-admin.fortress.com 2015053263 14400 1800 1209600 3600
Primary NS (mname)
pdns83.ultradns.com
Admin Email (rname)
dns-admin@fortress.com
Serial
2015053263
Refresh
14400s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

pdns83.ultradns.net
pdns83.ultradns.org
pdns83.ultradns.biz
pdns83.ultradns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

17 records
  • pardot1032231=0f3ce38cb46bac7d7cbe8edb4099e2349fd53f9f353964be0344715a84560ac7
  • MS=ms76304498
  • anthropic-domain-verification-wpfdq0=W6ZpSH4T93QyrA3WafseWNmiP
  • sending_domain1084012=4882af644cc8f49cc06b5f213a7f9176509d7bf2b80aaf10e27e36625c82eff6
  • atlassian-domain-verification=bJBxIkYdz1JaD7R7L051deSp0pFXfKoMtmXXf4Ai7nr6noAjg5bjCGEph/rRaaxr
  • SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
  • go9F1oANSw/2WGW1ppP7NmePwiA1iDwk62ZdbnARD8psFHGb3Ji6XjlAaPIiD6gHQXtK6LuJGi/1FWydYuK0TQ==
  • sending_domain1084012=3017377f32288b711f284f39167fa480a9ce3e33be1106ce7176675fba5fb84f
  • figma-domain-verification=481a4cfc7ba6bfd6549606027dd1e89a81b39aa1b1e74e6e9e812cc2a0da197e-1762531769
  • sending_domain1032231=2fd429b2cb18431f7ff038c9c2578a47f7426360d243697bdcd8b59416ee7e9b
  • pardot1084012=14ace874c2c75225e555b3c7b7bd1080052d0e1c371be0566e0bbfd10e990e34
  • apple-domain-verification=yKJLnEqSdrK8p09F
  • docusign=bbdc3a8c-017d-4f71-9368-9b0bc8aec28f
  • google-site-verification=Aq7w2YqGaManqOb3_LVTL75EWpiO6om2AHHBZ6fwjvg
  • google-gws-recovery-domain-verification=53899715
  • docusign=cf630d4a-03df-4b54-aaec-c9716d4cdd02
  • postman-domain-verification=1dfd53e63c56c5a8c6a68704a2f5d8b7d2f01b69956d05a36ff407e11a1531122faac229bf2d3f657a2e7999e384c512a356c833221313f556f8876cc2b21d71
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